<html>
    <head>
        <meta charset='utf-8' />
    </head>
    <body>
        <form action='6.1.php' method='post' enctype='multipart/form-data'>
            上传文件：<input type='file' name='up'/>
            <br/>
            <input type='submit'/>
        </form>
    </body>
</html>